Develop Reference

How to run jar file on shell script in linux terminal?

I made a java project.
The project is....output log message and system.out.println message. just simple.
So I changed into a jar file(the name is LinuxSample.jar).
and I wrote a shell script to run this jar file.
Look at this shell script. (speakee is package name and PrintLinux is main class name)
#!bin/bash
CLASSPATH=/home/tangooc/TANGOOC/test/libs/*
CLASSPATH="${CLASSPATH};/home/tangooc/TANGOOC/test/linux/LinuxSample.jar"
java speakee.PrintLinux
this jar file and this shell script work in Window.
but linux didn't work. I don't know why
this is error message.
Could not find or load main class

Hi Best way to run a java application is to set CLASS_PATH and PATH variable first. If your current jar file depends on external jar files you will face lots of problem. Better set your path variable like below and run the application:-
#!/usr/bin/ksh
export PATH=/usr/java/bin:$PATH
# =/usr/java/bin is your java bin folder
#set environment variable CP with all the jar libraries
CP=/home/flussi/xmlEncoder/encoder.jar
CP=${CP}:/other/jar/somejar.jar
java -Xmx256M -classpath "$CP" "com.myproj.Example"

I made it
I changed the shell script.
CLASSPATH=/home/tangooc/TANGOOC/test/client/LinuxSample.jar
LIB_TOTAL=/home/tangooc/TANGOOC/test/libs/*
echo ${LIB_TOTAL}
echo ${CLASSPATH}
java -cp ${LIB_TOTAL}:${CLASSPATH} speakee.PrintLinux
also there is another way.
CLASSPATH=/home/tangooc/TANGOOC/test/client/LinuxSample.jar
CLASSPATH=${CLASSPATH}:/home/tangooc/TANGOOC/test/libs/*
echo ${CLASSPATH}
java -cp ${CLASSPATH} speakee.PrintLinux
If the someone like me change the shell script.
and check a line, a line, a line...

Writing a bash script to run a java program

I'm rank new to bash thus the question.
I've a java program that I've exported as a .jar.
This file when run as
java -jar somefile.jar
goes into an infinite loop and awaits a file name. Based on the correct file path it generates an output.
How do I write a bash script to do automated testing of this project.
I need the scrip to do the following -
Run the program, which is run the same command
provide an array of 5 files as an input to the program
For each file write the output to an log file.

This should do it.
#!/bin/bash
files="$#"
for i in $files;
do
echo "Doing $i"
java -jar somefile.jar <<< "$i"
done
Make sure you chmod u+x filename it first. Then call it like this:
./filename firstfile secondfile thirdfile etc.
Other:
As sjsam pointed out, the use of <<< is a strictly bash thing. You are apparently using bash ("I'm rank new to bash..."), but if you weren't, this would not work.

Suppose my java program is HelloWorld.java. We can run it in 2 ways:
1st using executable jar
2nd by running java class from terminal
create a new text file and name it hello.sh
In hello.sh
!/bin/bash
clear
java -jar HelloWorld.jar
Save it and open terminal:
1 navigate to directory where your HelloWorld.jar is present
2 give permission to terminal to run the bash script by using the following command
sudo chmod 754 hello.sh
3 run you script by running the following command
./hello.sh

Error while executing java program with .sh file

I have error while executing java command with .sh file with external library.
I have wrote a script called executer.cmd which contains
java -cp .;hsql.jar hsqlconnector %*
its working fine with windows.
For Unix also I have wrote a script and make u+x with chmod but still m getting error
of
bash: hsql.jar command not found
My executor.sh looks like
java -cp .;hsql.jar hsqlconnector %*

On Linux you must use : (colon) instead of ; (semi-colon) to separate entries on a path, because ; has a different meaning in the shell on Linux.
See here:
http://www.coderanch.com/t/526784/Linux-UNIX/cp-linux-include-additional-jar

How to run batch file with parameters in java?

I have created a jar file called test.jar under C:\jars. I have JAR file under the same location named run.bat and it contains the below code -
#echo off
set exec_path=C:\jars java -cp %exec_path%/test.jar; com.mycomp.myapp.MyProgram "%1"%*
#echo on
It is running successfully from command prompt with parameters.
Now I would like to run it from another JAVA program.
Please suggest.
Thanks!

I've encountered this issue before. The answer is that you have to run cmd.exe or bash or whatever shell you've got, then feed in the command to that process via the process input/output streams.
Process p = Runtime.getRuntime().exec("cmd");
p.getOutputStream().write("mybatch.bat\n");

How do I run a java program from a different directory?

I have a java program that I would like to be able to run from anywhere on my machine. I would like to run it from my Cygwin command prompt. I've made scripts to call the java program. I added the location of the java program to the classpath, and the scripts work when I run them from the java program's directory. However, when I try to run from any other directory, I get:
java.lang.NoClassDefFoundError: commandprogram/CommandProgram
This is my script:
#!/bin/sh
CWD=`dirname "$0"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram
Changing the java line to the following:
java -cp "$CWD/classes;$CWD/classes/commandprogram;$CWD/lib/AJarFile.jar" CommandProgram
produces the same results.

add your directory to classpath example:
java -classpath commandprogram CommandProgram
or
java -classpath directory_to_program Program

After trying just about everything I could think of, I echoed out the command and saw that there was mixing of Cygwin paths and Windows paths. The solution was to change the script to:
#!/bin/sh
CWD=`dirname "$0"`
CWD=`cygpath -w "$CWD"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram
Then CWD changed to "C:\Program Files\..." instead of "/cygdrive/c/Program\ Files/..."
I had previously encountered this problem and solved it with the cygpath -w solution, but then changed my script slightly and didn't notice that the path problem came back.

you have to use a dot to separate packages, not a slash.
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram.CommandProgram

The usual way of running a java file is to save it in the Java/Bin folder and Run cmd
C:\Program Files\Java\jdk1.7.0_05\bin> javac filename.java && java classname
If you save the file in different directory such as D:, you can use the following on the cmd prompt:
D:\Project java> set path=%path%;C:Program Files\Java\jdk1.7.0_05\bin